INSIDE PF/C
Most important skills - ID, IS, Rebounding, Driving, Passing
Can be neglected to some extent - All others (though some degree of SB is handy).
Possible six season training plan:
ID for the first season and a half, then IS for the next season and a half, then two seasons of passing training (in all cases, rebounding is trained during two game weeks) (Passing trains pretty quick for bigs, which is why I recommend it). Then a season of one on one for guards to round him out. The player would be around 17-18 in the big 3 skills, and around 12 in passing, handling and driving.
OUTSIDE PF/C (This is a bit of a different sort of player that I would really like to have one or two at my disposal)
Most important skills - ID, rebounding, shot blocking, JS
Can be neglected to some extent - IS
Possible six season training plan:
ID for two seasons, Shot blocking for a season, passing for a season, jump shot for two seasons. Rebounding is trained in two game weeks throughout. Resultant player is around 20 in ID and rebounding, 15 in shot blocking, and around 10-11 in JS and passing. IS stays low to keep salary low (sub 200K), and to not bust the cap. Basically get a gun defender and rebounder who can shoot and pass the ball to the guards to score.